-- binary
00 19 # type
00 10 # length
80 00 1a 02 # OXM header
00 32 # OXM value
00 00 00 00 00 00 # pad
-- python
ofp.action.set_field(field=ofp.oxm.tcp_src(50))
-- java
OFOxms oxms = OFFactories.getFactory(OFVersion.OF_13).oxms();
builder.setField(oxms.tcpSrc(TransportPort.of(50)))